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using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Entities;
using Tango.Core;
using Tango.Core.Commands;
using Tango.CSV;
using Tango.FSE.Common;
using Tango.FSE.Common.Navigation;
using Tango.FSE.Procedures.CSV;
using Tango.FSE.Procedures.Dialogs;
using Tango.FSE.Procedures.Messages;
using Tango.FSE.Procedures.Navigation;
using Tango.FSE.Procedures.Views;
namespace Tango.FSE.Procedures.ViewModels
{
public class ProcedureRunnerViewVM : FSEViewModel, IProcedureLogger, INavigationObjectReceiver<RunProcedureNavigationObject>
{
public enum RunnerView
{
ProcedureRunnerCatalogView,
ProcedureRunnerExecutionView
}
private bool _requiresReloadingOfProjects;
private bool _isFromDesigner;
private ProcedureProject _designerProject;
private RunnerView _selectedView;
public RunnerView SelectedView
{
get { return _selectedView; }
set { _selectedView = value; RaisePropertyChangedAuto(); }
}
private List<PublishedProcedureProject> _publishedProcedureProjects;
public List<PublishedProcedureProject> PublishedProcedureProjects
{
get { return _publishedProcedureProjects; }
set { _publishedProcedureProjects = value; RaisePropertyChangedAuto(); }
}
private ProcedureProject _runningProcedureProject;
public ProcedureProject RunningProcedureProject
{
get { return _runningProcedureProject; }
set { _runningProcedureProject = value; RaisePropertyChangedAuto(); }
}
private ProjectRunner _projectRunner;
public ProjectRunner ProjectRunner
{
get { return _projectRunner; }
set { _projectRunner = value; RaisePropertyChangedAuto(); }
}
private bool _isLoadingProjects;
public bool IsLoadingProjects
{
get { return _isLoadingProjects; }
set { _isLoadingProjects = value; RaisePropertyChangedAuto(); }
}
public bool HasProcedureInputs
{
get { return RunningProcedureProject != null && RunningProcedureProject.Inputs.Count > 0; }
}
public ResultsViewVM ResultsViewVM { get; set; }
private String _status;
public String Status
{
get { return _status; }
set { _status = value; RaisePropertyChangedAuto(); }
}
private String _failedError;
public String FailedError
{
get { return _failedError; }
set { _failedError = value; RaisePropertyChangedAuto(); }
}
private bool _isRunning;
public bool IsRunning
{
get { return _isRunning; }
set { _isRunning = value; RaisePropertyChangedAuto(); }
}
private TangoProgress<double> _procedureProgress;
public TangoProgress<double> ProcedureProgress
{
get { return _procedureProgress; }
set { _procedureProgress = value; RaisePropertyChangedAuto(); }
}
public RelayCommand<PublishedProcedureProject> EditProjectCommand { get; set; }
public RelayCommand<PublishedProcedureProject> RunProjectCommand { get; set; }
public RelayCommand StartProjectCommand { get; set; }
public RelayCommand StopProjectCommand { get; set; }
public ProcedureRunnerViewVM()
{
ResultsViewVM = new ResultsViewVM();
EditProjectCommand = new RelayCommand<PublishedProcedureProject>(EditProject);
RunProjectCommand = new RelayCommand<PublishedProcedureProject>(RunProject);
StartProjectCommand = new RelayCommand(StartProject, () => ProjectRunner != null && ProjectRunner.CanRun);
StopProjectCommand = new RelayCommand(StopProject, () => ProjectRunner != null && ProjectRunner.IsRunning);
_requiresReloadingOfProjects = true;
RegisterForMessage<ProcedureProjectPublishedOrSuppressed>((x) => _requiresReloadingOfProjects = true);
}
private async void StartProject()
{
try
{
IsRunning = true;
FailedError = null;
ResultsViewVM.Results = new List<Result>();
Status = "Running...";
var context = new ProcedureContext(RunningProcedureProject, this);
ProcedureProgress = new TangoProgress<double>(null);
context.Progress += Context_Progress;
await ProjectRunner.Run(context);
Status = "Completed";
ResultsViewVM.Results = context.Results.ToList();
}
catch (OperationCanceledException)
{
Status = "Stopped";
}
catch (Exception ex)
{
Status = "Failed";
FailedError = ex.FlattenMessage();
}
finally
{
IsRunning = false;
ProcedureProgress = new TangoProgress<double>(null, false, 0, 100);
}
}
private void Context_Progress(object sender, TangoProgressChangedEventArgs<double> e)
{
ProcedureProgress = e.Progress;
}
private void StopProject()
{
ProjectRunner.Stop();
}
private void EditProject(PublishedProcedureProject project)
{
if (project != null)
{
NavigationManager.NavigateWithObject<
ProceduresModule,
ProcedureDesignerView,
ProcedureDesignerViewVM.NavigationObject>(
new ProcedureDesignerViewVM.NavigationObject()
{
Project = project
});
}
}
public override void OnNavigatedTo()
{
base.OnNavigatedTo();
if (_requiresReloadingOfProjects)
{
LoadPublishedProcedureProjects();
}
if (_isFromDesigner)
{
RunningProcedureProject = _designerProject;
RaisePropertyChanged(nameof(HasProcedureInputs));
ProjectRunner = new ProjectRunner(RunningProcedureProject);
ProjectRunner.StateChanged += (x, e) => InvalidateRelayCommands();
Status = "Ready";
InvalidateRelayCommands();
SelectedView = RunnerView.ProcedureRunnerExecutionView;
StartProject();
}
}
private async void LoadPublishedProcedureProjects()
{
try
{
IsFree = false;
IsLoadingProjects = true;
PublishedProcedureProjects = new List<PublishedProcedureProject>();
PublishedProcedureProjects = await Services.PublishedProcedureProjectsService.GetPublishedProcedureProjects();
_requiresReloadingOfProjects = false;
IsFree = true;
}
catch (Exception ex)
{
IsFree = false;
LogManager.Log(ex, "Error retrieving published procedure projects.");
await NotificationProvider.ShowError($"Error occurred while trying to retrieve the procedures collection.\n{ex.FlattenMessage()}");
}
finally
{
IsLoadingProjects = false;
}
}
private void RunProject(PublishedProcedureProject project)
{
RunningProcedureProject = ProcedureProject.FromJson(project.CurrentVersion.ProjectJsonString);
RaisePropertyChanged(nameof(HasProcedureInputs));
ProjectRunner = new ProjectRunner(RunningProcedureProject);
ProjectRunner.StateChanged += (x, e) => InvalidateRelayCommands();
Status = "Ready";
InvalidateRelayCommands();
SelectedView = RunnerView.ProcedureRunnerExecutionView;
}
public override Task<bool> OnNavigateBackRequest()
{
if (SelectedView == RunnerView.ProcedureRunnerExecutionView && !IsRunning)
{
SelectedView = RunnerView.ProcedureRunnerCatalogView;
if (_isFromDesigner)
{
_isFromDesigner = false;
return Task.FromResult(true);
}
return Task.FromResult(false);
}
_isFromDesigner = false;
return base.OnNavigateBackRequest();
}
public void WriteLine(string text)
{
Status = text;
}
public void Write(string text)
{
Status = text;
}
public void Clear()
{
//Do nothing
}
public void OnNavigatedToWithObject(RunProcedureNavigationObject obj)
{
_isFromDesigner = true;
_designerProject = obj.Project;
}
}
}
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